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| Titel: |
A new Ka-band microstrip Y-junction circulator with a ferrite sphere |
| Auteur: |
Chen, R. S. Ye, Z. B. Yung, Edward K. N. Tsang, K. F. Dou, W. B. |
| Verschenen in: |
International journal of electronics |
| Paginering: | Jaargang 90 (2003) nr. 2 pagina's 121-132 |
| Jaar: |
2003-02 |
| Inhoud: |
A novel microstrip circulator with a magnetized ferrite sphere is proposed for millimetre wave communications. A three-dimensional finite difference time-domain (FDTD) approach for the analysis of this ferrite sphere-based microstrip circulator is presented. The electromagnetic fields inside the ferrite junction are calculated by using special updating equations derived from the equation of motion of the magnetization vector and Maxwell's curl equations in consistency. Frequency-dependent insertion loss, isolation and reflection loss of circulator are calculated over a wide band of frequencies with a single FDTD run. Experimental results at the Ka-band are presented and compared with theoretical simulation. Good agreement is found between them. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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